Toru Higaki

Title: Toru Higaki: Innovator in Low Heat Cements

Introduction

Toru Higaki is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of construction materials, particularly in the development of low heat cements. His innovative work is essential for massive concrete works, where managing heat of hydration is crucial.

Latest Patents

Higaki holds a patent for "Compositions for low heat cements." This invention is designed specifically for large-scale concrete applications and demonstrates a compressive strength/heat of hydration ratio of at least 7.0 at the age of 13 weeks. One of his inventions involves a powder created by mixing CaO, SiO₂, and Al₂O₃ materials, melting the mixture, quenching the melt, and grinding the quenched matter. The resulting powder is primarily composed of amorphous substances, with a CaO/SiO₂ molar ratio of 0.8-1.5 and an Al₂O₃ content of no more than 10 wt. %. The second invention features a mixed powder that contains no less than 70 wt. % of the aforementioned powder and no more than 30 wt. % of an addition, such as Portland cement. This powder maintains the same characteristics as the first invention, except for a reduced Al₂O₃ content of less than 12 wt. %.

Career Highlights

Higaki is currently associated with Nihon Cement Co., Ltd., where he continues to innovate in the field of cement compositions. His work has been instrumental in advancing the technology used in concrete production, particularly for large infrastructure projects.

Collaborations

Higaki has collaborated with notable colleagues, including Kazuya Nakatsu and Takaharu Goto. Their combined expertise has contributed to the successful development of innovative cement compositions.

Conclusion

Toru Higaki's contributions to the field of low heat cements highlight his role as a significant inventor in construction materials. His innovative patents are vital for improving the efficiency and effectiveness of massive concrete works.